There's been a lot of recent offerings like this. Beelink is a pretty great company so this one is particularly tempting, and the form factor is cute as hell.

One thing to note in this recent trend is that these designs mostly use the Alder Lake-N / "Twin Lake" cores, which are quad low-power E-cores (still adequate). But more critically, there's only 9 lanes PCIe 3.0! And some of those lanes need to go to networking, be it ethernet and/or wifi! Often there'll be 1x PCIe lane per SSD. Given that it's a NAS running maybe dual 2.5Gbit, this isn't catastrophically bad (1x can do 8Gb/s), but conceptually I find it a bit dismaying anyhow. https://www.techpowerup.com/cpu-specs/processor-n150.c4109

Ohhh, with a built-in power supply on the top of it! Very nice! Thank you for the tip.

Roughly 1GB/s for each NVMe.